2023年考研考博-考博英语-南京艺术学院考试历年真题摘选含答案解析

2023年考研考博-考博英语-南京艺术学院考试历年真题摘选含答案解析第1卷一.综合题(共15题)1.单选题Giventhelackoffitbetweengiftedstudentsandtheirschools,itisnotsurprisingthatsuchstudentsoftenhavelittlegoodtosayabouttheirschoolexperience.Inonestudyof400adultswhohadachieveddistinctioninallareasoflife,researchersfoundthatthree-fifthsoftheseindividualseitherdidbadlyinschoolorwereunhappyinschool.FewMacArthurPrizefellows,winnersoftheMacArthurAwardforcreativeaccomplishment,hadgoodthingstosayabouttheirpre-collegiateschoolingiftheyhadnotbeenplacedinadvancedprograms.AnecdotalreportssupportthisPabloPicasso,CharlesDarwin,MarkTwain,OliverGoldsmith,andWilliamButlerYeatsalldislikedschool.SodidWinstonChurchill,whoalmostfailedoutofHarrow,aneliteBritishschool.AboutOliverGoldsmith,oneofhisteachersremarked,“Neverwassodullaboy.”Oftenthesechildrenrealizethattheyknowmorethantheirteachers,andtheirteachersoftenfeelthatthesechildrenarearrogant,inattentive,orunmotivated.Someofthesegiftedpeoplemayhavedonepoorlyinschoolbecausetheirgiftswerenotscholastic.MaybewecanaccountforPicassointhisway.Butmostfaredpoorlyinschoolnotbecausetheylackedabilitybutbecausetheyfoundschoolunchallengingandconsequentlylostinterest.Yeatsdescribedthelackoffitbetweenhismindandschool:“BecauseIhadfounditdifficulttoattendtoanythinglessinterestingthanmyownthoughts,Iwasdifficulttoteach,”Asnotedearlier,giftedchildrenofallkindstendtobestrong-willednonconformists.NonconforinityandstubbornnessarelikelytoleadtoConflictswithteachers.Whenhighlygiftedstudentsinanydomaintalkaboutwhatwasimportanttothedevelopmentoftheirabilities,theyarefarmorelikelytomentiontheirfamiliesthantheirschoolsorteachers.AwritingprodigystudiedbyDavidFeldmanandLyunGoldsmithwastaughtfarmoreaboutwritingbyhisjournalistfatherthanhisEnglishteacher.High-IQchildren,inAustraliastudiedbyMiracaGrossbadmuchmorepositivefeelingsabouttheirfamiliesthantheirschools.AbouthalfofthemathematiciansstudiedbyBenjaminBloomhadlittlegoodtosayaboutschool.Theyalldidwellinschoolandtookhonorsclasseswhenavailable,andsomeskippedgrades.1.Themainpointtheauthorismakingaboutschoolsisthat（

）.2.TheauthorquotestheremarksofoneofOliverGoldsmith’steachers（

）.

3.PabloPicassoislistedamongthemanygiftedchildrenwho（

）.

4.Manygiftedpeopleattributedtheirsuccess

（

）.

5.Therootcauseofmanygiftedstudentshavingbadmemoriesoftheirschoolyearsisthat（

）.问题1选项A.theyshouldsatisfytheneedsofstudentsfromdifferentfamilybackgroundsB.theyareoftenincapableofcateringtotheneedsoftalentedstudentsC.theyshouldorganizetheirclassesaccordingtothestudents’abilityD.theyshouldenrollasmanygiftedstudentsaspossible问题2选项A.toprovidesupportforhisargumentB.toillustratethestrongwillofsomegiftedchildrenC.toexplainhowdullstudentscanalsobesuccessfulD.toshowhowpoorOliver’sperformancewasatschool问题3选项A.paidnoattentiontotheirteachersinclassB.contradictedtheirteachersmuchtoooftenC.couldnotcopewiththeirstudiesatschoolsuccessfullyD.behavedarrogantlyandstubbornlyinthepresenceoftheirteachers问题4选项A.mainlytoparentalhelpandtheireducationathomeB.bothtoschoolinstructionandtotheirparents’coachingC.moretotheirparents’encouragementthantoschooltrainingD.Lesstotheirsystematiceducationthantotheirtalent问题5选项A.theirnonconformitybroughtlliemalotoftroubleB.theywereseldompraisedbytheirteachersC.schoolcoursesfailedtoinspireormotivatethemD.teacherwereusuallyfarstricterthantheirparents2.单选题Between1815and1915,morethan30millionimmigrantsarrivedintheUnitedStates.ThesewerepeoplefromothercountrieswhocametomaketheUnitedStatestheirhome.Immigrantscameformanyreasons.Someweredrivenawayfromhomebyhardshipssuchashunger,poverty,overpopulation,orpoliticalandreligioustroubles.SomewereattractedtotheUnitedStatesbythepromiseofabetterlife.Theyhadheardstoriesaboutcheapland,highwages,andevenaboutstreetspavedwithgold.Somecamebecauseofthepromiseofgreaterfreedominthisnewnation.Inthemid-1800s,theUnitedStatesneededworkersalmosteverywhere.Workerswereneededtobuildrailroadsandbridges.TheywereneededintheslaughterhousesofChicagoandintheironandcoalminesofOhioandPennsylvania.Theywereneededinfactoriesandonfarms.Theywereneededtobuildhomesandbuildingsinthegrowingcities.AmericancompaniesadvertisedinEuropeforpeopletocometotheUnitedStates.Thereweretwoperiodswhenimmigrantscameingreaternumbersthanusual.Between1815and1860,largenumbersofpeoplecamefromnorthernEurope.ThelargestgroupswereIrishandGermans.SomeAsians,mostlyChinese,alsocameduringthistime.In1815,IrelandwasthemostcrowdedcountryinEurope.Mostpeoplehadnolandandlittlefoodormoney.FamilieswouldsendtheiryoungermemberstotheUnitedStates.Theyoungpeopleinturn,wouldfindjobsandsendmoneyhome.ThenthewholefamilywouldmovetotheUnitedStates.Inthe1840s,thepotatocropsfailedinIreland.Everywherepeoplediedofstarvationandfewer.Withintenyears,1.5millionIrishpeopleleftfortheUnitedStates.MostIrishimmigrantslandedinNorthernportcitiessuchasBoston,NewYork,andPhiladelphia.Theydidnothaveenoughmoneytobuyfarms.Mostsettledinthepoorestareasofthesecities.Irishpeoplegottheworstjobsandlowestpay.Themendugcanals,builtroadsandrailroads,andworkedintextilefactories.Thewomenworkedinfactoriesorashouseholdservants.MostGermanimmigrantscouldmoveonfromtheEasternportcities.ManyboughtfarmsintheMidwestorstartedbusinessinthenewerWesterncitiesofDetroit,Milwaukee,andChicago.Thegoldrushof1849broughtmanyChinesetoCalifornia.Floods,typhoons,andhungerhadforcedmanyChinesetoleavetheirhomes.FromUnitedStatesmerchantshipsreachingChina,theyheardabouthighwagesandgold.In1850alone,25,000youngChinesearrivedinCalifornia.TheChineseworkedinthegoldmines.Theyhelpedbuildthefirstrailroadtocrossthenation,whichwasfinishedin1869.Later,theyworkedinlumbering,fishing,andcanningcompanies,andonfarmsinCalifornia.ThesecondgreatwaveofimmigrantscamemostlyfromeasternandsouthernEuropebetween1890and1910.GiantfactoriesandbusinessesintheUnitedStatesneededmoreandmoreworkers.After1900,asmanyas15,000peoplewouldarriveinoneday.ManyoftheseimmigrantswereJewsfromdifferentpartsofEuropeseekingreligiousfreedom.SouthernItaliansalsocameinlargenumbers.TheyweredrivenawayfromItalybyaverydifficultlife.SomeSicilianworkersmadeonly8centsaday.Peoplehadtoliveinstrawhousesandsometimesintombsandcaves.Greeks,Hungarians,Russians,andPolesalsocametotheUnitedStatesduringthistime.MexicanstravelednorthtocitiesandfarmsthroughouttheUnitedStatesSouthwest.JapanesepeoplearrivedontheWestCoast.Theretheytookjobsasfarmworkersandservants.Manyeventuallyboughttheirownland.LifeintheUnitedStateswasverydifficultforalmostallthenewimmigrants.Andyet,manyfoundsomeoftheirdreamscomingtrue.1.Animmigrantisapersonwho（

）.2.WhichofthefollowingreasonsisNOTtrue?3.ChineseimmigrantscametotheUnitedStatesmainlybecauseof（

）.

4.Whohelpedbuildthefirstrailroad,whichwasfinishedin1869,tocrossthe-nation?5.LifeintheUnitedStateswasverydifficultfor（

）.问题1选项A.dreamsofahappierlifeandwantsabetterjobB.leavesone’sowncountryandsettlesinanotherC.comesasasettlerintoanothercountryD.doessomeoddjobsinsparetime问题2选项A.Somewereattractedbythepromiseofgreaterfreedomorabetterlife.B.Someweredrivenawayfromhomebystarvationorpoverty.C.Mostoftheimmigrantslefttheirhomesbecauseofpoliticalandreligioustrouble.D.ManyoftheimmigrantswereJewswhocametoseekreligiousfreedom.问题3选项A.thefailureofpotatocropsB.thestarvationathomeandtheattractionofthegoldminesofCaliforniaC.religiousfreedomD.politicalfreedom问题4选项A.Chineseimmigrants.B.Russianimmigrants.C.Germanimmigrants.D.Japaneseimmigrants.问题5选项A.IrishimmigrantsonlyB.ChineseimmigrantsonlyC.almostallthenewimmigrantsD.alltheimmigrants3.单选题Thefirstthingpeoplerememberaboutfailingatmathisthatitfeltlikesuddendeath.Whethertheincidentoccurredwhilelearning“wordproblems”insixgrade,orcopingwithequationsinhighschool,orfirstconfrontingcalculusandstatisticsincollege,failurecamesuddenlyandinaveryfrighteningway!Ifassumethatthecurriculumwasreasonable,andthatthenewideawasbutnextinaseriesoflearnableconcepts,thefeelingofutterdefeatwassimplynotrational;yet“mathanxious”collegestudentsandadultshaverevealedthatnomatterhowmuchtheteacherreassuredthem,theycouldnotovercomethatfeeling.Acommonmythaboutthenatureofmathematicalabilityholdsthatoneeitherhasordoesnothaveamathematicalmind.Mathematicalimaginationandanintuitivegraspofmathematicalprinciplesmaywellbeneededtodoadvancedresearch,butwhyshouldpeoplewhocandocollege-levelworkinothersubjectsnotbeabletodocollege-levelmathaswell?Ratesoflearningmayvary.Competencyundertimepressuremaydiffer.Certainlylowself-esteemwillgetintheway.Butwhereistheevidencethatastudentneedsa“mathematicalmind”inordertosucceedatlearningmath?Considertheeffectsofthismythology.Sinceonlyafewpeoplearesupposedtohavethismathematicalmind,partofwhatmakesussopassiveinthefaceofourdifficultiesinlearningmathematicsisthatwesuspectallthewhilewemaynotbeoneof“them”,andwespendourtimewaitingtofindoutwhenournon-mathematicalmindswillbeexposed.Sinceourlimitwilleventuallybereached,weseenopointinbeingmethodicalofinattendingtodetail.Wearegratefulwhenwesurvivefractions-wordproblemsorgeometry.Ifthatcertainmomentoffailurehasn’tstruckyet,itisonlytemporarilypostponed.Parents,especiallyparentsofgirls,oftenexpecttheirchildrentobenon-mathematical.Parentsareeitherpooratmathortheyfailedthemselves.Ineithercase,theyunwillinglyfostertheideathatamathematicalmindissomethingoneeitherhasordoesnothave.1.Accordingtothepassage,whoarelikelytoexperiencemathanxiety?2.Howwould“mathanxious”studentsprobablyreacttotheirfailureatmath?3.Whichofthefollowingstatementsistrueabout“mathanxious”students?4.Theauthorbelievesthat（

）.5.Thepassagecouldbestbeentitledby（

）.问题1选项A.Primaryschoolstudents.B.Highschoolstudents.C.Collegestudents.D.Alloftheabove.问题2选项A.Slowdowntheirlessons.B.Askmorequestionsthannecessary.C.GototheteacherforreassuranceD.Panicandacceptthedefeat.问题3选项A.Theyrealizethatthefeelingofutterdefeatisirrational.B.Theyassumethatthecurriculumisnotreasonable.C.Theyfeelthenewideasaretoodifficultforthemtolearn.D.Theyregardthenewideasasonlysomethingtobeencounterednextinaseriesoflearnableconcepts.问题4选项A.apersoneitherhasordoesnothaveamathematicalmindB.astudentneedsamathematicalmindtosucceedatlearningcollegelevelmathC.peopledoingadvancedresearchinmathusuallyhavewhatiscalleda“mathematicalmind”D.parentswhoarepooratmaththemselvesaremorelikelytoexpecttheirchildrentobenon-mathematical问题5选项A.MathAnxietyB.OvercomingMathAnxietyC.FailingtheMathExamD.MathAnxiousStudents4.单选题Cancerresearchersarelearningtoreadgeneslikeacrystalballtopredicthowpatientswillrespondtocancertherapy,whowillsuffertheworstsideeffectsandwhattreatmentsmaybebestforaparticularpatient.Foreseeingtheoutcomeoftreatment,andknowingwithcertaintywhichdrugsarebestforindividualpatients,havelongbeenthegoalsofcancerresearchers.Foratleast40years,oncologistshavepuzzledoverwhysomepatientsrespondsowelltochemotherapywhileothersobtainmodestbenefitsornoneatall.ThediscoverydecadesagothatlinkedachromosomeabnormalitytooneformofleukemiapavedthewayforthedevelopmentofthedrugGleevecbyDrukerandtheabilitytoidentifythepatientsmostlikelytobenefit.Morerecently,withthewealthofknowledgefromthehumanGenomeProject,researchershavebeenabletodevelopevenmorespecifictoolstocreategeneticprofilesoftumorsandmatchthoseprofileswiththerightdrugs.Thetoolsalsohelpdeterminewhichpatientsaremostlikelytoexperiencetheworstsideeffectsofspecifictypesofchemotherapyandguidethemtoothertreatments.ResearchersfromtheUniversityofChicagostudiedalterationsoftheUGT1A1gene,associatedwithanincreasedchanceofchemotherapysideeffects.MarkRatainandhisteamstudied61coloncancerpatientsreceivingirinotecanandlearnedthatpatientswithalterationsofthegenelabeledas7/7weremostlikelytosufferseverelossesofwhitebloodcells.Patientswiththe6/7alterationtypehadintermediatesideeffects,andpatientswiththe6/6typehadnone.ScientistsattheMassachusettsGeneralHospitalexaminedgenesthatnormallyhavetheabilitytorepairdamagetoDNAincellscalledXPDandXRCC1.Thenumberofvariationsinthesegenesindicateshowlongapatientislikelytosurvive.SaradaGurubhagavatulaandherteamstudiedvariationsofthesegenesin103patientsdiagnosedwithadvancednon-small-celllungcancer.Patientswithatotalofthreevariationsinthegenessurvivedamedianof6.8months;thosewithtwovariationssurvived11months;patientswithonevariationsurvived16.6months;andthosewithnovariationssurvived20.4months.Gurubhagavatulasaysthevariationscouldbeidentifiedandthosewiththeworstpredictedoutcomesputonchemotherapyregimensthatofferbetteroddsofsurvival.ScientistsatCedars-SinaiMedicalCenterandGenomicHealthInc.havedevelopedawaytotestlungtumorforgeneticprofilesassociatedwithresponsestothenewlungcancerdrugIressa.Thedrughasbeenshowntoshrinktumorsin10%to12%ofpatientswithadvancedlungcancer.DavidAgusatCedar-Sinaifoundapatternof185genesthatareturnedoffandoninamannerthatcorrelateswithresponsetoIressaortoalackofresponse.Whenusedcommercially,thetestwilltargetpatientsmostlikelytobenefitandwillallowpatientstomakeotherchoicesifthenegativeprofileisfound.1.Thetextismainlyabout（

）.2.TheachievementsfromHumanGenomeProjectenableresearchersto（

）.

3.Thepurposeoftheauthorinmentioningthethreeresearchesisto（

）.

4.Saradaandherteamareconvincedthat（

）.

5.Inthe3rdparagraph,theword"alteration"means（

）.问题1选项A.thesearchforeffectivecancertreatmentdrugsB.thegoalsofcancertreatmentC.thesuccessinreadinggenesD.thecancertreatmentbyexamination问题2选项A.diagnoseachromosomeabnormalitymoreaccurately.B.developcancertreatmentdrugslikeGleevec.C.administercancertreatmentwithlesssideeffect.D.comeupwithchemotherapyasaneffectivetoolforcancertreatment.问题3选项A.makeacontrastiveanalysisofthem.B.illustratetheachievementsincancertherapy.C.presentthesimilaritiesanddifferencesbetweenthem.D.showhowalteredgenescancausecancer.问题4选项A.researchongenesoffersthemgreaterpredictivepower.B.lungcanceriscausedbyvariationofgenes.C.patientscansurvivelungcancerbyalteringtheirgenes.D.chemotherapycansaveeventheworstlungcancerpatients.问题5选项A.investigationsB.activitiesC.predictionsD.changes5.单选题ThebiggestproblemfacingChileasitpromotesitselfasatouristdestinationtobereckonedwith,isthatitisattheendoftheearth.Itistoofarsouthtobeaconvenientstoponthewaytoanywhereelseandismuchfartherthanarelativelycheaphalf-dayflightawayfromthebigtouristmarkets,unlikeMexico,forexample.Chile,therefore,isfightinghardtoattracttourists,toconvincetravelersthatitisworthcominghalfwayroundtheworldtovisit.ItissucceedinginexistingmarketsliketheUSAandWesternEuropebutnotinnewterritories,inparticulartheFarEast.Marketsclosertohome,however,arenotbeingforgotten.Morethan50%ofvisitorstoChilestillcomefromitsnearestneighbor,Argentina,wherethecostoflivingismuchhigher.LikeallSouthAmericancountries,Chileseestourismasavaluableearnerofforeigncurrency,althoughithasbeenfarmoreseriousthanmostinpromotingitsimageabroad.Relativelystablepoliticallywithintheregion,ithasbenefitedfromtheproblemssufferedinotherareas.InPeru,guerrillawarfareinrecentyearshasdealtaheavyblowtothetouristindustryandfearofstreetcrimeinBrazilhasreducedtheattractionofRiodeJaneiroasadreamdestinationforforeigners.Morethan150,000peoplearedirectlyinvolvedinChilestouristsector,anindustrywhichearnsthecountrymorethanUS$950millioneachyear.Thestate-runNationalTourismService,inpartnershipwithanumberofprivatecompanies,iscurrentlyrunningaworldwidecampaign,takingpartintradefairsandinternationaleventstoattractvisitorstoChile.Chile’sgreatstrengthasatouristdestinationisitsgeographicaldiversity.FromtheparchedAtacamaDesertinthenorthtotheAntarcticsnowfieldsofthesouth,itismorethan5,000kmlong.WiththePacificononesideandtheAndeanmountainsontheother,Chileboastsnaturalattractions.ItsbeachesarenotuptoCaribbeanstandardsbutresortssuchasVinadelMararcgenerallycleanandunspoiltandhaveahighstandardofservices.ButthetrumpcardistheAndesmountainrange.Thereareanumberofexcellentskiresortswithinonehour'sdriveofthecapital,Santiago,andthenationalparksinthesoutharehometorareanimalandplantspecies.Theparksalreadyattractspecialist,visitors,includingmountaineers,whocometoclimbthetechnicallydifficultpeaks,andfishermen,luredbythesalmonandtroutintheregion'srivers.However,infrastructuraldevelopmentintheseareasislimited.TheskiresortsdonothaveasmanyliftsastheirEuropeancounterpartsandpartpoorqualityofroadsinthesouthmeansthatonlythemostdeterminedtravelersseethebestofthenationalparks.AirlinksbetweenChileandtherestoftheworldare,atpresent,relativelypoor.WhileChile'stwolargestairlineshaveextensivenetworkswithinSouthAmerica,theyoperateonlyasmallnumberofroutestotheUSandEuropewhileservicestoAsiaarealmostnon-existent.Internaltransportlinksarebeingimprovedandluxuryhotelsarebeingbuiltinoneofitsnationalparks.NorisdevelopmentbeingrestrictedtotheAndes.EasterIslandandChile'sAntarcticTerritoryarealsoonthelistofareaswheretheGovernmentbelievesitcancreatetouristmarkets.Buttherushtoopenhithertoinaccessibleareastomasstourismisnotbeingwelcomedbyeveryone.Indigenousandenvironmentalgroups,includingGreenpeace,saythatmanypartsoftheAndeswillsufferiftheybecomeover-developed.ThereisagenuinefearthatareasofChilewillsuffertheculturaldestructionwitnessedinMexicoandEuropeanresorts.ThepolicyofopeningupAntarcticatotourismisalsopoliticallysensitive.Chilealreadyhaspermanentsettlementsontheiceandmanypeopleseethedecisiontoallowtouriststhereasapoliticalmove,enhancingSantiago'sterritorialclaimoverpartofAntarctica.TheChileanGovernmenthaspromisedtorespecttheenvironmentasitseekstobringtourismpotential.TheGovernmentwillhavetomonitordevelopmentscloselyifitisgenuinelyconcernedincreatingabalanced,controlledindustryandifthepriceofanincreasinglylucrativetouristmarketisnotgoingtomeanthelossofmanyofChile'snaturalriches.1.Chileisdisadvantagedinthepromotionofitstourismby（

）.2.MorethanhalfofChile'stouristscomefrom（

）.

3.Accordingtotheauthor,Chile'sgreatestattractionis（

）.

4.Accordingtothepassage,inWHICHareaimprovementisalreadyunderway?5.Accordingtothearticle,inChile,theservicesofairlinestoAsiaare（

）.问题1选项A.geographicallocationB.guerrillawarfareC.politicalinstabilityD.streetcrime问题2选项A.USAB.theFarEastC.westernEuropeD.Argentina问题3选项A.theunspoiltbeachesB.thedryandhotdesertC.thefamousmountainrangeD.thehighstandardofservices问题4选项A.Facilitiesintheskiresorts.B.Domestictransportsystem.C.AirservicestoAsia.D.Roadnetworkinthesouth.问题5选项A.onlyasmallnumberofroutesB.almostnon-existentC.asmanyasinEuropeD.thelargestamount6.翻译题PutthefollowingtwopassagesintoEnglish.

自新中国成立以来，南京发生的巨大而深刻的变化令人欢欣鼓舞。从1949年4月23日开始，人民真正成为这座古老城市的主人。人民在自己的土地上辛勤劳作，把古城南京装扮得面貌一新，特别是近十几年，改革开放又给这座美丽的名城注入了新的活力，崭新的工作、通达的运输、如画的城市建设、兴盛的第三产业、多彩的文化生活，都使这个具有古都特色的现代化城市焕发出勃勃英姿。南京，这座古老而又年轻的历史文化名城，是多么可爱！“儿时”的可爱是“无知”。那时侯，件件都是“知”，你每天可以做大科学家和大哲学家，每天在发现什么新的现象，新的真理。现在呢？什么都已经知道了，熟悉了，每个人的脸都已经看厌了。宇宙和社会是那么陈旧，无味，虽然它们其实比“儿时”新鲜得多了。我于是想念“儿时”，祷告“儿时'不能够前进的吋候，就愿意退后几步,替自己恢复己经走过的前途。请求“无知”回来，给我求知的快乐。7.翻译题PutthefollowingtwopassagesintoChinese.Thefirstsnowcame.Howbeautifulitwas,fallingsosilentlyalldaylong,allnightlong,onthemountains,onthemeadows,ontheroofsoftheliving,onthegravesofthedead!Allwhitesavetheriver,thatmarkeditscoursebyawindingblacklineacrossthelandscape;andtheleaflesstress,thatagainsttheleadenskynowrevealedmorefullythewonderfulbeautyandintricaciesoftheirbranches.Whatsilence,too,camewiththesnow!Nowwearealllivinginmodemtime.Asthesocietyhasdeveloped,euthanasia（安乐死）ormercykillinghasreturnedtotheworld’shomepage.Manyreportsaboutrelevantcasesandresultsofscholarlyresearchoftenappearonthefrontpageofthenewspapers.Euthanasiaissometimescalledmercykilling,doctors-assistedsuicideorpainlessdeath.Itisusuallyunderstoodasamercifulacttorelieveaterminally-illpatient’sunbearablephysicalpain.Whilethemajorityofsocietyseemstofavorthissupposedlyhumanitarianpractice,itstillcouldtakedecadesforthecountry’slegislativeandjudicialdepartmentstodealwiththehighlycontroversialissue:NospecificlawofrulegovernseuthanasiaassuchinChina,buttheactfitsthevagueconceptof“intentionalkilling”intheCriminalCode.Yetthevoicescallingforlegislationoneuthanasiahavebecomelouderinrecentyears.8.单选题Despitewars,famines,andepidemics,Earth’spopulationisboomingaheadtonewrecordswithnoendinsight.Everyday,theworldaddsenoughpeopletopopulateamedium-sizedcityintheUS.Inonemonth,thenumberofnewworldcitizensequalsthepopulationofNewYorkCity.Everyyear,thereare90millionmoremouthstofeed,morethanthetotalpopulationofGermany.Severalfactorsarepropellingthisrapidgrowth,includinganelementthatofoftenoverlooked;thehugenumberofteenagerswhoarebecomingmothers,particularlyinthecountriesofsub-SaharanAfrica.InfourAfricannationsNiger,Mali,SierraLeone,andIvoryCoast1outofevery5adolescentfemalesofchildbearingagehasababyannually.TheUSBureauoftheCensussaysthishighrateofmotherhoodamongteenshashelpedtomaintainthehighpaceofbirthsacrossmostoftheAfricancontinent.Bystartingafamilyearly,atypicalwomaninSomalia,forinstance,hassevenchildrenduringherlifetime.EquallylargefamiliesaretheruleinZambia,Zaire,Uganda,Mauritania,Mali,Malawi,andEthiopia.Thecurrentrecord-holderforfertilityisstrife-tornRwanda,whereatypicalmotherhasatleasteightorninechildren.WhilepopulationexpertsoftenfocusonAfrica’sproblems,analystsnotethatteenagedmothersarealsofarmoreprevalentintheUnitedStatesthaninFrance,Germany,Italy,Sweden,orBritain.Thisissue“babieshavingbabies”hasrecentlygainedprominenceintheUS.TeenagedmotherhoodintheUShasfueledanexpansionoftheState-federalwelfaresystemandbroughtcriesforwelfarereformfromlawmakers.Withitshighrateofteenbirths,theUSnowranksalongsideIndonesiaandpartsofSouthAmerica,andonlymodestlyaheadofMexico,India,andPakistan.Overall,thefertilityrateamongAmericansremainsrelativelylowat2.1birthsperwoman-aboutthereplacementlevel.AlthoughtheUSpopulationisexpectedtoclimbsteadily,from260milliontodayto323millionby2020,mostofthatgrowthwillcomefromimmigration.TheCensusBureauestimatesthatinHaiti,wherethousandsofcitizensaretryingtofleetotheUSbecauseofmilitaryoppressionandpoverty,AIDSwillcuttheannualgrowthrateduringthenext25yearsfrom2.1percentto1.3percent.ThedeclineingrowthisevensharperintheCentralAfricanRepublic,whererateswilldipfrom2.4percentto0.7percent.InThailand,whichalreadyhadlowbirthrates,ADISwilldrivepopulationdownwardto0.8percentayear.Inthe16countriesthatarehithardest,AIDSwilllowerpopulationsby121millionoverexpectedprojectionsby2020.InAfrica,theimpactofAIDSissogreatthattrendstowardlongerlifespansduringthepast40yearsbeingreversed.Somenationswillsufferdeclinesinaveragelifespansof0to30yearscomparedwithexpectedlifespanswithoutAIDS.IntheUS,whereAIDSisalsoasubstantialproblemtheimpactwillbelowerbecausethediseaseismostlylimitedtohomosexualsanddruguser,saysPeterWay,aCensusBureauresearch.InmanyAfricannations,AIDSisprevalentamongtheheterosexualpopulations,withsharplyboostsinfantmortality.Acompellingchapterintheresearchdealswithaging.Todaythemedianageindevelopedcountriesis35,andthatindevelopingnationsisonly23.By2020,thecorrespondingfigureswillbe42and28.Todaytherearefeweradultsover60(525million)thanchildrenunder5(636million).Astheworldpopulationages,by2020thenumberover60willbemorethan1billion,whilethoseunder5willtotal717million.1.Sub-SaharanAfricancountries（

）.2.Thepassagestatesteenagedbirthsare（

）.

3.ThepopulationgrowthrateintheUSis（

）.

4.Fromthefactualdatainthepassage,weknowthatbytheyear2020（

）.

5.Thepassageimpliesthatbytheyear2020（

）.问题1选项A.willhave